(This is the pretty much the same post as I put into DBH post)
So I have learnt that you can't set properties on User pages, only on articles so that means you can't do anything with personal pages to make them searchable (via queries).
So the best I could come up with is that each person would create a page
http://marvel-war-of-heroes.wikia.com/wiki/Blynk_sandbox_test that has a set format for listing the cards.
Then there are to ways for looking at trades
http://marvel-war-of-heroes.wikia.com/wiki/Category:Trade - Going to the Trade category will list all pages that are set as Trade pages
http://marvel-war-of-heroes.wikia.com/wiki/Special:RunQuery/TradeSearch - The trade search page can allow people to search for specific cards (I have currently ripped of Jays work). It automatically does a wild card search to find all matching cards.
The search can be modified to search for any of the fields (level, ability level, fusion, price), and I am planning on adding a "Looking For/Selling" option.
The main downside is that the pages are not against the user page, but maybe we could implement a timeframe on it. Where any pages that have not been updated in 3 months are deleted?
What are peoples opinions? Maybe if we get another user to do a similar page, we could see what it looks like all together.